Dr. Benjamin Levine of the University of Texas Southwestern Medical Center said that routine screening using electrocardiogram to detect sudden cardiac death risk in young athletes may not be necessary, noting studies have found that there's only a small risk of an arrest in athletes ages 8 to 35. "Many who are not at risk may be excluded from participation in sport, and for those who are excluded, it is not clear whether their outcome is changed, but it is premature to mandate ECG screening for the broad population of athletes until more data are available," he said.

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